
B-63943EN-1/02 5.AUTOMATIC OPERATION
- 571 -
Limitation
- P type Restart
In the following conditions, P type restart cannot be performed:
• Automatic operation has not been performed since power-on.
• Automatic operation has not been performed since emergency
stop was released.
• Automatic operation has not been performed since the coordinate
system was changed or shifted (change of the external workpiece
origin offset value).
The block that can be restored properly by P type program restart is a
block for which coordinate system setup or change was performed
most recently before machining was interrupted.
- Restart block
The block where the program is to restart is not necessarily be the
block at which the program was interrupted. You can restart the
program from any block. For P-type restart, however, the block
where the program is to restart must use the same coordinate system as
when program execution was interrupted.
- Single block
When the single-block operation is enabled at the time of a movement
to the restart point, a single-block stop occurs each time an axis
operation takes place. In this case, no MDI operation is allowed.
- Manual intervention
During movement to the restart point, manual intervention is allowed
for an axis for which a return operation has not yet been performed.
However, manual operations do not cause any movement along axes
for which a return operation has already been completed.
- MDI
When the search operation has ended, no move command can be
specified by MDI before axis movement.
- Reset
Do not perform a reset operation during the time from the start of the
search operation of the restart sequence until machining is restarted.
If a reset operation is performed, the restart steps must be performed
again from the beginning.
- Feed hold
If a feed hold operation is performed during the search, the restart
steps must be performed again from the beginning.
- Manual absolute
Every manual operation must be performed with the manual absolute
mode turned on regardless of whether the manual operation is
performed before or after machining.